Amazon is sending emails to customers who bought certain solar eclipse glasses from a third-party seller, recommending to the buyers to not use them.

An email with the subject line reading "Important Product Safety Notification Regarding Your Amazon.com Order" was sent Saturday morning regarding some eclipse glasses. It says "Amazon has not received confirmation from the supplier of your order that they sourced the item from a recommended manufacturer, We recommend that you DO NOT use this product to view the sun or the eclipse."

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A customer who provided a copy of the email and a photo of the glasses says he bought the Thousand Oaks Optical Solar Viewers from third-party seller through Amazon.

Eric Inafuku

That brand of glasses, however, is considered "reputuable" by the American Astronomical Society. The glasses are still available on the Thousand Oaks website, and other filters from the Arizona-based company are available through Amazon.

Commenters on Amazon's Shyh page say they have reached out to the vendor and received assurances that the glasses were authentic and safe.

Still, Amazon is giving refunds to customers who purchased the glasses through the third-party vendor and said there is no need to return the glasses.

Eric Inafuku

A copy of an email sent to a customer who bought certain eclipse glasses.